Home / 19,163.07-28,688.97-11,745.09

Finding the Fourth Proportional to 19,163.07, 28,688.97 and 11,745.09

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Solution

The fourth proportional to 19,163.07, 28,688.97 and 11,745.09 is: 17,583.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,163.07 : 28,688.97 = 11,745.09 : x
  2. Step 2: Convert to fraction form
    19,163.07/28,688.97 = 11,745.09/x
  3. Step 3: Cross multiply
    19,163.07x = 28,688.97 × 11,745.09
  4. Step 4: Simplify right side
    19,163.07x = 336,954,534.66
  5. Step 5: Solve for x
    x = 336,954,534.66/19,163.07
  6. Step 6: Final answer
    x = 17,583.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.